Gyrating pump



R. CHICUREL.

Mm. W 116? GYRATING PUMP 2 Sheets-Sheet 1 Filed Jan. 13, 1965 INVENTOR. RICARDO CHl/CUHEL 3mm W WW R. @HIGUFZEL GYRATING PUMP Filed. Jan. 13, 1965 2 Sheets-Sheet 2 INVENTOR fi/LWRUO OHIGUWE'L United States Patent Office 3,296,975 Patented Jan. 10, 1967 3,296,975 GYRATING PUMP Ricardo Chicurel, 730 Palmer Drive, Blacksburg, Va. 24060 Filed Jan. 13, 1965, Ser. No. 425,171 12 Claims. (Cl. 103143) This invention relates to constant output pumps and relates more particularly to a compact gyrating pump capable of providing constant output.

Various types of fluid displacement apparatus or pumps have been utilized to obtain constant output including piston, centrifugal, diaphragm, and other specific constructions, many of which are complex and require numerous components and frequent maintenance.

The present invention of a constant output gyrating pump provides a minimum number of components to obtain the displacement of a fluid by the incorporation of a revolving rotor supported within a housing cavity in which the rotor synchronously revolves within the hous ing and within complementary rotatable rotor supporting and cavity sealing casings to produce sufficient suction within the housing for fluid to flow through an inlet passage communicating with the cavity to a discharge opening spaced from the inlet.

Elimination of conventional valves and other conventional components will reduce maintenance to a minimum.

Many objectives and advantages of this invention for a gyrating pump will become readily apparent to those skilled in the technology of fluid mechanics upon consideration of the following disclosure taken in conjunction with the accompanying drawings in which like characters refer to corresponding parts throughout the several views, and wherein:

FIG. 1 is a front perspective view of the gyrating pump embodying the details of my invention;

FIG. 2 is an enlarged right end elevational view of FIG. 1 rotated 90 degrees with a portion of the cable sleeve removed;

FIG. 3 is a left side elevational view of FIG. 2 omitting the terminal portion of the cable and support;

FIG. 4 is a top plan view of FIG. 3 in which portions of the rotor shell are removed to expose the orientation of the internal components;

FIG. 5 is an exploded perspective view of the components in the preferred embodiment of the gyrating pump oriented as shown in FIG. 1; and

FIG. 6(a) through (h) is a diagrammatic sequential portrayal illustrating pump operation in eight different stages.

Referring to the drawings and particularly to FIGS. 1 through 5, there is illustrated a preferred embodiment of a gyrating pump 10 in which a ring assembly or base housing 11 having a rectangular perimeter with planar parallel sides 12 and 13. A rotor-receiving cavity 14 is provided within the housing for cooperatively receiving the disk rotor 15 therein. Cavity 14 has an interrupted circular raceway 16, the surface of which has a spherical radius of curvature for seating a corresponding circularspherical perimeter 17 on rotor 15. The circular raceway 16 is interrupted by the downwardly extending or depending ring tooth 18, the sides of which converge radially and the terminal portion 19 is provided with an arcuate section having a complementary spherical radius of curvature to cooperate with the exposed spherical curvature 20 provided on the rotor 15 in the sectoral recess 21 provided in rotor 15. The height of the depending tooth or bafiie 18 will permit passage of the rotor recess 21 with the surfaces 19 and 20 cooperating with each other in sealing engagement. A concentric cable shaft receiving opening 22 in rotor 15 will support and retain flexible cable member 23 therein by threaded engagement or other suitable securing means (not shown).

Fluid inlet port or passageway 24 passes through housing 11 flanking one side of tooth 18 to communicate with cavity 14 while discharge or outlet port or passageway 25 through housing 11 flanks the other side of tooth 18 and communicates with cavity 14. It will be appreciated that the proximity of the ports and number thereof to the tooth 18 may vary in accordance with the desired flow and pressures. No valves or orifices need be employed in the ports 24 and 25. Inlet line 26 and outlet line 27 are secured to the respective ports 24 and 25.

When the rotor 15 is seated or positioned in the complementary raceway 16, the rotor is eccentrically positioned relative to the housing 11. Therefore, as shown in FIGS. 3 and 5, one portion of the rotor protrudes for a greater extent from the side 12 of the housing than the other portion of the rotor extends from the side 13. A flanged casing end or shell 30 cooperatively seals the cavity 14 exposed on side 13 of housing 11 while receiving the protruding portion of the rotor 15 within the arcuate chamber 31 extending normal to the circular disk flange 32 in the casing end 30. Shaft 33 secured to the chamber 31 projects radially for coupling to a suitable driving member (not shown). Projection of the axis of shaft 33 will extend through the center of the rotor 15 and the center of the circular rim 34 of flange 32. The face 35 of flange 32 may be provided with a suitable gasket, if required, or be positioned contiguous to the surface of side 13 in sealing engagement and for rotation thereagainst.

A complementary flanged casing end or shell 37 which may be formed of an upper section 38 and a lower section 39, when positioned against the housing side 12 and joined together by suitable fastening means 40 spaced along the substantially semi-circular flanges 41 and 42 of the members 38 and 39 respectively, will enclose the rotor portion protruding from the side 12, as shown in FIG. 5. The upper member 38 is provided with a semi-circular flange 43 that complements the semi-circular flange 44 on member 39 which flanges when positioned together will be cooperatively received in the annular recess 45 provided in side 12 concentric with cavity 14. Upper section 38 has a dished, arcuate rotor-receiving pocket 46, and the lower member 39, as shown in FIG. 5, has a complementary arcuate, dished rotor-receiving pocket 47. A rotor rotating shaft 23 will extend through the shaft opening 48 of member 39 while the outer or exposed surface 48 will support the sleeve 50 which terminates in the sleeve bracket 49 secured by suitable means thereto. The sleeve supporting bracket 51, which is stationarily supported, provides a bearing surface receiving the end of the revolving sleeve 50. One end of flexible shaft 23 is secured by suitable means to bracket 51. In this manner, when sleeve 50 is revolved about the axis of shaft 33, shaft 23 is forced to rotate within and relative to sleeve 50 while simultaneously partaking in the rotation of sleeve 50 about the axis of 33.

Each of the members 38 and 39 is provided with a cavity-extending boss 53 having a flat terminal portion 54 and a semi-circular, spherically contoured periphery 55 for cooperative reception and Positioning the upper and lower members 38 and 39 together completes the circular, spherically contoured boss which will have the surface 55 cooperate with the spherical contour segment 19 on the end of tooth 18 thereby forming an internal fluid receiving and discharging chamber upon rotation of the rotor 15 and shells 30 and 37. A plurality of openings 56 receive suitable fastening members 57 therethrough for securing the shells 30 and 37 on opposite sides 12 and 13 of housing 11 together. The

continuous circular perimeter formed by unification of the members 38 and 39 will seat shell 37 into the recess 45 and seal the cavity exposed on side 12. With the rotor 15 seated in cavity 14 and shrouded by the shells 30 and 37 the sectoral recess 21 may be synchronously timed to admit the depending tooth into the recess whereby upon each rotation of the shells by means of the shaft 33 and a single rotation of the rotor 15, a one-to-one rotation relationship, fluid will be drawn through the inlet port 24, displaced through the chamber formed by the housing 11 and the shells, and the fluid will be displaced through the chamber by the rotor 15 and discharged through the outlet port 25. In theillustrated embodiment, the sectoral recess 21 extends for approximately 90 degrees or one quadrant.

The following sequence will describe the pumping action of the gyrating pump in conjunction with the diagrammatic illustrations in FIG. 6, (a) through (It), in which the pertinent components bear reference characters corresponding to the structural components described and illustrated in FIGS. 1 through 5. In stage (a), rotor 15 is revolving in the plane of the sheet of drawing in a clockwise direction. Fluid in the chamber 60, collected in the chamber from a previous cycle, is being forced through the chamber during clockwise rotation of the rotor 15. In the position shown in FIG. 6(a), the reverse side of the rotor 15 has just passed the inlet port 24 and suction generated induces the flow of fluid into that portion of the chamber 61 on the rear surface of the rotor 15. Fluid in that portion of the chamber 60 shown in advance of the rotor 15, that ortion referred to by the reference character 63, is being forced through the discharge port 25. In FIG. 6(b), rotor 15 is shown displaced 90 degrees from a vertical center line forcing the fluid through the chamber 60 and discharging, by reducing the volume in that portion of the chamber marked 63, through the discharge opening 25 while increasing the volume of the chamber at 61. Further enlargement of the chamber at 61, and reduction of the chamber at 63 occurs in FIG. 6 (c) as the rotor 15 continues its clockwise rotation. When the rotor 15 reaches the vertical position shown in FIG. 6(.d), the chambers 61 and 63 have equal volumes, however, it is recognized that the volumes of fluid in 61 and 63 are both contained within the chamber 60 but separated by the rotor 15. At this stage, FIG. 6(d), one cycle of a two-cycle pumping system has been completed taking into account the rotation of the rotor during rotation of the shells through the shaft 33. However, rotation of the rotor by means of its drive shaft 23 will produce relative rotation with respect to the housing 11 and the shells 30 and 37. Therefore, during actual synchronous operation of the one-to-one rotational relationship between the rotor and shells, two pumping cycles or sequences are conducted. In FIG. 6(c), the second cycle or sequence occurs substantially as described for FIGS. 6 (a) through (d) taking into account the rotation of the rotor that is revolved by means of its shaft 23 within the shells 30 and 37. As the rotor 15 revolves within the shells 30 and 37 and within the housing 11, the sectoral recess 21 will be synchronously timed to permit passage of the baffle or tooth 18 therethrough. As illustrated in FIG. 6(c) through (11), the rotor 15, sectoral recess 21, in (c) has just passed the baffle 18 to commence the cycle. That portion of the rotor illustrated with the cross-hatched markings illustrates the position of the segmental recess 21 in its rotation during rotation of the rotor 15.

Many modifications and variations may be made to the individual housings, shells, rotor and other components without departing from the purpose and spirit of this invention and such modifications and alterations are contemplated within the scope of the appended claims.

What I claim is:

1. A constant discharge positive displacement pump comprising: a ring assembly having a rotor-receiving cavity therein, said cavity having a toroidal perimeter and said assembly having a depending ring tooth extending into said aperture, and an inlet and an outlet port within said ring assembly separated by said tooth and communicating with said cavity perimeter; a disk rotor cooperatively received within said assembly for rotation, said rotor having a circular ring sector matched therein for complementary cooperation with said depending ring tooth and a rotating flexible shaft secured thereto for revolving said rotor about its axis; means for rotating said shaft; a pair of complementary rotor enclosing casing shells, said shells forming a cavity therebetween for partially enclosing said rotor; a flexible shaft-receiving bushing mounted in one of said shells; a rotor cavity closing end for sealably enclosing the remaining portion of said rotor, said end being secured to said shells and having a rotating shaft rigidly fastened thereto; and means for rotating said shaft whereby the casing is turned within the ring assembly while the rotor is simultaneously turned within the enclosing shells and end, the rot-or drawing a pumped substance within the aperture of the assembly through the inlet port while simultaneously expelling a pumped substance from the aperture through the outlet port, the rotation of the bonded shells and end positioning the circular ring sector notched within the rotor to mesh with and pass the depending ring tooth on each revolution of the revolving rotor.

2. A constant discharge positive displacement pump comprising: a ring assembly having a substantially circular disk rotor-receiving aperture therein, said aperture having a toroidal perimeter and said assembly having a depending circular ring sector tooth extending into said aperture, and an inlet and an outlet port separated by said tooth and communicating with the perimeter of said aperture; a substantially circular disk rotor cooperatively received within said assembly for rotation, said rotor having a circular ring sector matched therein for complementary cooperation with said depending ring tooth and a rotating flexible shaft secured thereto for revolving said rotor about its axis; means for rotating said shaft; a pair of complementary rotor enclosing casing shells, said shells forming a cavity therebetween for partially enclosing said rotor; a flexible shaft bushing mounted in one of said shells for cooperatively receiving said flexible rotor shaft; a rotor cavity closing end for enclosing the remaining portion of said rotor, said end being sealably bonded to said shells and having a rotating shaft rigidly secured thereto; and means for rotating said shaft whereby the casing is turned within the ring assembly while the rotor is simultaneously turned within the enclosing shells and end, the rotor drawing a pumped substance within the aperture of the assembly through the inlet port while simultaneously expelling a pumped substance from the aperture through the outlet port, the rotation of the bonded shells and end positioning the circular ring sector notched within the rotor to mesh with and pass the depending ring tooth separating the input and output ports on each revolution of the revolving rotor.

3. A positive displacement constant output gyrating pump comprising: a base housing having planar parallel sides and a rotor-receiving cavity, said cavity having a toroidal perimeter defining a circular raceway; a depending circular ring tooth extending into said cavity interrupting said raceway; an inlet port positioned on one side of said tooth and an outlet port positioned on the other side of said tooth, said ports communicating with said cavity perimeter; a circular recess concentric with said cavity carried by one of said housing sides; a disk rotor having a sectoral tooth-bypassing recess and a spherical contoured perimeter for cooperative mating with said cavity perimeter; complementary rotor-receiving and cavity sealing shells affixed to each other and rotatably mounted about an axis normal to said housing sides, one of said shells being guidably and rotatably retained in said housing circular recess; means for revolving said rotor within said complementary shells and relative thereto; and means for revolving said shells relative to said housing synchronously and continuously with rotor rotation whereby fluid entering the inlet port under suction generated by the rotor will be displaced through the cavity and discharged through the outlet port.

4. A gyrating pump for constant discharge comprising: a base housing having planar parallel sides and a rotorreceiving cavity, said cavity having a toroidal perimeter rimming a spherical raceway; a depending tooth extending into said cavity interrupting said raceway; fluid inlet and outlet ports flanking said tooth; a circular recess concentric with said cavity within one planar housing side; a disk rotor having a sectoral tooth-bypassing recess and a spherical contoured perimeter for cooperative mating with said cavity perimeter; a pair of complementary rotorreceiving and cavity sealing shells aflixed to each other and rotatably mounted about an axis normal to said housing sides, one of said shells being guidably and rotatably retained in said housing circular recess; means for revolving said rotor within said complementary shells; and flexible shaft means for revolving said shells relative to said housing synchronously with rotor rotation whereby fluid entering the inlet port under suction generated by the rotor will be displaced through the cavity and discharged through the outlet port.

5. A constant discharge positive displacement pump comprising: a base housing having planar parallel sides and a rotor-receiving cavity, said cavity having a circular perimeter with a spherical raceway; a depending tooth extending into said cavity interrupting said raceway, said housing having fluid inlet and outlet ports flanking said tooth, one side having a circular recess concentric with said cavity; a disk rotor having a sectoral tooth-bypassing recess and a spherical contoured perimeter for cooperative mating with said cavity perimeter and raceway; a pair of complementary rotor-receiving and cavity sealing shells affixed to each other and mounted for rotation about an axis normal to said housing, one of said shells being guidably and rotatably retained in said housing circular recess; means for revolving said rotor within said complementary shells; and shaft means for revolving said shells relative to said housing continuously and synchronously with rotor rotation whereby fluid entering the inlet port under suction created by the rotor will be displaced through the cavity and discharged through the outlet port.

6. A constant discharge positive displacement pump comprising: a ring assembly having a rotor-receiving cavity with an interrupted circular raceway; a baflle interrupting said raceway; inlet and outlet ports in said housing flanking said battle and communicating with said cavity; a rotatably seated disk rotor within said cavity having a recess for cooperatively receiving and passing said baflie; rotatable means for enclosing said rotor and sealing said cavity mounted on said housing; shaft means for revolving said rotatable enclosing means relative to said housing; and separate means for revolving said rotor whereby simultaneous and synchronous rotation of the enclosing means and rotor draws fluid through the inlet port into the cavity, displaces the fluid through said cavity, and discharges the fluid from the cavity through the outlet port.

7. A constant discharge positive displacement gyrating pump comprising: a housing having a rotor-receiving cavity with an interrupted circular raceway; a depending ring tooth extending into said cavity and interrupting said raceway; an inlet and an outlet port in said housing flanking said tooth and communicating with said cavity; a disk rotor having a circular ring sectoral recess for cooperatively receiving and clearing said ring, said rotor being rotatably seated in said cavity; complementary shells rotatably mounted on said housing, said shells enclosing said rotor and sealing said cavity; flexible shaft means for revolving said shells relative to said housing, and

6 means for revolving said rotor relative to said shells and said housing whereby synchronous rotation of the shells and rotor draws fluid through the inlet port, displaces the fluid through said cavity, and discharges this fluid through the outlet port.

8. A constant output gyrating pump comprising: a housing having a rotor-receiving cavity with an interrupted circular raceway; a baffle extending into said cavity interrupting said raceway; inlet and outlet ports in said housing flanking said baflle and communicating with said cavity; a disk rotor rotatably seated within said cavity, said rotor having a sectoral recess for cooperatively receiving and clearing said baflie; complementary shells enclosing said rotor and sealing said cavity rotatably mounted within the cavity of said housing; means for revolving said shells relative to said housing, and a shaft-receiving bushing mounted in one of said shells; and shaft means for revolving said rotor relative to said shells and said housing whereby synchronous rotation of the shells and rotor draws fluid through the inlet port and into the cavity and displaces the fluid through the cavity for discharge therefrom through the outlet port.

9. A constant discharge positive displacement gyrating pump comprising: a base housing having two exposed sides and a circular rotor-receiving cavity extending through said sides; a depending ring tooth extending from said housing into said cavity; an inlet and an outlet port in said housing isolated by said tooth and communicating with said cavity; a circular disk rotor having a circular ring sector recess notched therein for cooperatively receiving and clearing said tooth, said rotor being rotatably seated within said cavity; complementary rotor-receiving and cavity sealing means rotatably mounted within the cavity of said housing, said means being sealably positioned proximate said exposed sides; a flexible shaft for revolving said rotor-receiving and cavity sealing means relative to said housing, and means for revolving said rotor relative to said housing and said rotor-receiving and cavity sealing means whereby a pumped substance is drawn into and through the inlet port through the cavity and discharged continuously through said outlet port as the rotor and rotor-receiving and cavity sealing means each makes one revolution.

10. A constant discharge positive displacement gyrating pump comprising: a base housing having a circular rotor-receiving cavity therein; a depending ring tooth extending from said housing into said cavity; separate inlet and outlet ports in said housing, said ports separated by said tooth and communicating with said cavity; a rotatably seated circular disk rotor in said cavity having a recess -for cooperatively receiving and passing said tooth, rotorreceiving and cavity sealing means rotatably and sealably mounted within said housing; means for rotating said rotor-receiving and cavity sealing means, and means for revolving said rotor whereby fluid may be drawn from the inlet port through said cavity and discharged continuously through said outlet port.

11. A constant output gyrating pump comprising: a base housing having a circular rotor-receiving cavity therein said housing having front and rear planar surfaces and a planar connecting edge, a depending ring tooth extending radially from said housing into said circular cavity, inlet and outlet ports in said housing communicating with said cavity and positioned on each side of said tooth, said ports extending from the periphery of said cavity outward between said front and rear planar surfaces to communicate with said planar connecting edge, a circular disk rotor having a sectoral recess for cooperatively receiving and clearing said tooth rotatably seated in said cavity, complementary rotor-receiving and cavity sealing means rotatably and receivably mounted within the cavity of said housing, means for revolving said rotorreceiving and cavity sealing means relative to said housing, and means for revolving said rotor relative to said rotor-receiving and cavity sealing means whereby fluid is drawn through the inlet ports into the cavity and discharged continuously through the outlet ports as the rotor and rotor-receiving and cavity sealing means simultaneously make one revolution.

12. A constant discharge positive displacement pump comprising: an assembly ring having a body portion with front and rear planar surfaces and planar connecting edges, said body portion having a substantially circular opening therein and the periphery of said opening carrying a radially extending circular ring sector separating an inlet and an outlet port, said ports extending from the periphery of said circular opening outward between said front and rear planar surfaces to communicate with a planar connecting edge; means for passing material for pumping, said means connecting said inlet port to a source of said material; means for conveying pumped material from said outlet port to a remote location; a pair of complementary casing halves, each of said halves having a first and second rotor-receiving portion, said portions being joined along their diameters at' an angle of substantially 90 degrees, said second portions of said complementary halves forming a full circle when mated having a bonding hub thereon, said full circle and hub being cooperatively received by said circular opening of said assembly ring, and said first portions of said complementary halves forming a rotor-receiving cavity therebetween; a casing end including a first full circle portion and a second hollow half circle portion, said second portion being perpendicularly secured along its diameter to said first portion along the diameter of said first portion, means for securing said casing end to said hub of said complementary casing halves rotatably within said opening of said assembly ring; means for rotating said connected casing end and complementary halves within the opening of said ring about an axis normal to said ring; a rotor disk cooperatively received Within said cavity forming a half circle of said complementary halves and said hollow portion of said casing end, said disk having a circular ring sector circumferentially notched therein and being rotatably mounted to revolve about a moving axis in a planar surface of said rotor assaid ring assembly simultaneously rotates about an axis normal to said ring assembly, there being relative movement of said rotor to said assembly, a different relative movement of said rotor to said connected casing halves and end, and a still different relative movement between said casing and end and said assembly whereby the revolving rotor passes the inlet port, creates a suction force to draw a substance to be pumped therethrough and continues this suction until the opposite rotor edge halts the suction by again passing the inlet port while simultaneously and constantly moving the pumped substance until this material is expelled through the outlet port, the constant rotation of the connected casings and end positioning the notched ring sector to mesh with and cooperatively pass the depending ring tooth.

References Cited by the Examiner UNITED STATES PATENTS 826,670 7/1906 Klann 103143 2,632,400 3/1953 Marsh 103143 2,694,983 11/1954 Farrell 103l43 3,060,910 10/1962 McCall 12313 DONLEY I. STOCKING, Primary Examiner.

MARK NEWMAN, Examiner.

R. M. VARGO, Assistant Examiner. 

1. A CONSTANT DISCHARGE POSITIVE DISPLACEMENT PUMP COMPRISING: A RING ASSEMBLY HAVING A ROTOR-RECEIVING CAVITY THEREIN, SAID CAVITY HAVING A TOROIDAL PERIMETER AND SAID ASSEMBLY HAVING A DEPENDING RING TOOTH EXTENDING INTO SAID APERTURE, AND AN INLET AND AN OUTLET PORT WITHIN SAID RING ASSEMBLY SEPARATED BY SAID TOOTH AND COMMUNICATING WITH SAID CAVITY PERIMETER; A DISK ROTOR COOPERATIVELY RECEIVED WITHIN SAID ASSEMBLY FOR ROTATION, SAID ROTOR HAVING A CIRCULAR RING SECTOR MATCHED THEREIN FOR COMPLEMENTARY COOPERATION WITH SAID DEPENDING RING TOOTH AND A ROTATING FLEXIBLE SHAFT SECURED THERETO FOR REVOLVING SAID ROTOR ABOUT ITS AXIS; MEANS FOR ROTATING SAID SHAFT; A PAIR OF COMPLEMENTARY ROTOR ENCLOSING CASING SHELLS, SAID SHELLS FORMING A CAVITY THEREBETWEEN FOR PARTIALLY ENCLOSING SAID ROTOR; A FLEXIBLE SHAFT-RECEIVING BUSHING MOUNTED IN ONE OF SAID SHELLS; A ROTOR CAVITY CLOSING END FOR SEALABLY ENCLOSING THE REMAINING PORTION OF SAID ROTOR, SAID END BEING SECURED TO SAID SHELLS AND HAVING A ROTATING SHAFT RIGIDLY FASTENED THERETO; AND MEANS FOR ROTATING SAID SHAFT WHEREBY THE CASING IS TURNED WITHIN THE RING ASSEMBLY WHILE THE ROTOR IS SIMULTANEOUSLY TURNED WITHIN THE ENCLOSING SHELLS AND END, THE ROTOR DRAWING A PUMPED SUBSTANCE WITHIN THE APERTURE OF THE ASSEMBLY THROUGH THE INLET PORT WHILE SIMULTANEOUSLY EXPELLING A PUMPED SUBSTANCE FROM THE APERTURE THROUGH THE OUTLET PORT, THE ROTATION OF THE BONDED SHELLS AND END POSITIONING THE CIRCULAR RING SECTOR NOTCHED WITHIN THE ROTOR TO MESH WITH AND PASS THE DEPENDING RING TOOTH ON EACH REVOLUTION OF THE REVOLVING ROTOR. 